Modular Seating Assembly With Detachable Backrest Connection
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Solution Overview
Problem
Conventional seating devices with integrated backrests are not modular, making it difficult to easily exchange and combine seat and backrest elements, limiting their adaptability in furniture systems.
Innovation Solution
A seat device design featuring recesses in both the seat and backrest elements that accommodate a connecting element, allowing for secure, tool-free attachment and detachment, with the option to use high-quality cold foam for enhanced comfort and ergonomics, and a connecting element with angled legs for stable, form-fitting engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the backrest element is firmly connected to the seat element via a rigid substructure, then the seating device gains stability and shape, but the backrest element cannot be easily removed and replaced
Solution Approach 1:
The seat device is divided into separate modular components: a seat element and a backrest element that can be independently removed and replaced. The connecting element provides a detachable connection between these segments, enabling modularity while maintaining structural integrity when assembled.
Solution Approach 2:
The connection between the backrest element and seat element transitions from a fixed rigid state to a dynamically detachable state. The connecting element with recesses allows the backrest to be firmly secured during use (providing stability) while enabling easy removal and replacement when needed (providing operational flexibility).
2Strength
If the seat element and backrest element are firmly connected, then the seating device maintains structural integrity, but the elements cannot be easily exchanged and combined in modular furniture systems
Solution Approach 1:
The seating device is segmented into interchangeable modules (seat element and backrest element) that can be independently manufactured and assembled. The connecting element with its recesses provides standardized attachment points that enable different combinations of modules for various furniture configurations.
Solution Approach 2:
The connecting element with recesses serves multiple functions: it provides structural connection to maintain integrity, enables easy detachment for reconfiguration, and allows different backrest elements to be interchangeably connected to the same seat element, creating a universal interface for modular furniture systems.
3Ease of operation
If a connecting element is used to detachably fasten the backrest element to the seat element, then the elements can be easily separated and reconnected, but the connection stability may be compromised
Solution Approach 1:
The connecting element is inserted into recesses within both the seat element and backrest element, creating a nested structure. This nesting provides form-fit connection that maintains stability during use while allowing the connecting element to be pulled out for separation and reconnection.
Solution Approach 2:
The connecting element acts as an intermediary component that mediates the connection between the seat element and backrest element. It provides a standardized interface with recesses that ensures stable attachment while enabling tool-free assembly and disassembly operations.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
The invention relates to a seating device (40) comprising at least one seating element (10) and at least one leaning element (20) arranged at an angle to the seating element, wherein the leaning element (20) is detachably secured to the seating element (10) by means of at least one joining element (30). According to the invention, the seating element (10) comprises at least one recess provided for receiving a part of the joining element (30), wherein the recess has at least one region that extends, on the vertical plane, through at least one part of the seating element (10). The invention also relates to a joining element (30) comprising at least two arms arranged approximately at a right-angle to one another, wherein one of the arms is provided for being received in a region of the recess of the seating element (10), and for being received in the recess of the leaning element (20).